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The B.D. and T.D. on a certain sum is Rs. 200 and Rs. 100 respectively. Find out the sum.
Answer & Solution
Correct Answer:
Option
D
$$\eqalign{
& F = \frac{{BD \times TD}}{{BD - TD}} \cr
& \,\,\,\,\,\,\,\, = \frac{{200 \times 100}}{{200 - 100}} \cr
& \,\,\,\,\,\,\,\, = \frac{{200 \times 100}}{{100}} \cr
& \,\,\,\,\,\,\,\, = {\text{Rs}}{\text{.}}\,200 \cr} $$
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